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Flameproof Hydraulic Range Pressure Switches FC series

Flameproof Pressure Switches are designed as per IS2148 for Gas Gr. IIC Flameproof - CE Certification and approved by a leading European Lab – “BASEEFA” for ATEX & ICEEX certificates

Various Ranges : from 0 to 150 mm Wc upto 0 to 400 Bar

Differential (Dead Band) : Fixed (Within 10% of set value) Or, Adjustable
Sensing Element : Diaphragm (PTFE, Neoprene or, SS 316) or Piston

Enclosure : Flameproof to group IIC

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Flameproof Hydraulic Range Pressure Switches FC series

  1. 1. FC RANGES Large Flamepaths for better safety Internal ground screw Seperate Terminal block for safe wiring Robust Snap action microswitches for reliable switching Lock Screw for stable set-points Cover chained to main body Large Springs for finer set-points Surge reducer & arrestor to dampen surges Piston & 'O' ring assembly for long life in higher pressures Approximate Weight : Pressure switches with Aluminium enclosure : 1.95 Kg. Pressure switches with Grey CI enclosure : 4.35 Kg. Pressure switches with SS enclosure : 4.45 Kg. Electrical Connection : Z 2 3 1 Some Applications : For high pressure cylinder testing jigs, CNG/LPG gas skids, high pressure compressors, etc.
  2. 2. HYDRAULIC RANGESFC
  3. 3. FC RANGES RANGE SELECTION TABLE Range Code Range bar (psi) Differential* bar (psi) Maximum Working Pressure bar (psi) Approximate Maximum for "A1" microswitch H1T 0.5 - 10 (7.25 - 145.04) 0.5 (7.25) 150 (2175.00) H2T 2 - 20 (29.00 - 290.08) 2 (29.00) 200 (2900.76) H4T 5 - 40 (72.52 - 580.15) 5 (72.52) 200 (2900.76) H1H 10 - 100 (145.04 - 1450.38) 12 (174.045) 200 (2900.76) H2H 7 - 200 (101.53 - 2900.76) 24 (348.09) 400 (5801.52) H4H 40 - 400 (580.15 - 5801.52) 70 (1015.27) 500 (7251.90) * Minimum differential increases with setpoint (Graphs available on request) * Differentials of miroswitches A2 through A9 will vary. Differentials for A7 are typically twice that for A1 microswitch. Please indicate specifically the differential value in enquiry/order, when it is critical in your application.
  4. 4. FCRANGES 57 HOW TO ORDER FLAMEPROOF HYDRAULIC RANGE PRESSURE SWITCHES Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 Non standard allocation Gas Group Classification Cable Entry Size Switch Type Range Code (values in bar) Microswitch Type Pressure Port Material / Size Diaphragm Reserved for non-standard options not covered in catalogue. Will be given by manufacturer, only after agreement of supply details with customer. FC = Flameproof pressure switch, ATEx & IECEx approved, with Aluminium head as per IS/IEC 60079-1 for Gas Gr. IIC 1 = Al. head ½" NPT threads 2 = Al. head ¾" NPT threads 3 = Al. head M20 x 1.5 threads 4 = Grey CI head ½" NPT threads 5 = Grey CI head ¾" NPT threads 6 = Grey CI head M20 x 1.5 threads 7 = SS head ½" NPT threads 8 = SS head ¾" NPT threads 9 = SS head M20 x 1.5 threads P 1 = pressure switch, fixed differential without scale P2 = pressure switch, fixed differential with scale in bar P3 = pressure switch, fixed differential with scale in psi H1T = (0.5 - 10) H2T = (2 - 20) H4T = (5 - 40) H1H = (10 - 100) H2H = (7 - 200) H4H = (40 - 400) A1=General purpose microswitch rated at 15 A; 250 VAC *A2 = Hermetically sealed for corrosive environments *A3 = gold plated contacts for low voltage applications *A4 = DPDT configuration *A5 = for high DC ratings *A6 = elements with adjustable deadband *A7 = 2SPDT switching elements *A8 = General purpose microswitch rated at 5 A; 250 VAC *A9 = General purpose microswitch rated at 5 A; 250 VAC Please refer page no. 230 for more microswitch options * Please refer note under Range Selection Table S1 = SS316 / ¼" BSP(F) S2 = SS316 / ¼” NPT(F) Please refer page no. 226 & 227 for more pressure port options 0 = Neoprene 1 = Teflon 2 = SS 316L 3 = Hastelloy C 4 = Monel 5 = Titanium 6 = Tantalum 7 = Inconel eg. A flameproof switch for gas group IIC, with ½" NPT cable entry in aluminium housing as 1SPDT pressure switch, having 5 bar to 40 bar pressure range, with 15Amp. microswitch, SS316 pressure housing with ¼” BSP port size & SS316L diaphragm shall be specified by Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 FC 1 P1 H4T A1 S1 2 Please specify full model number to avoid ambiguity. If only the first two groups are specified while ordering, uncalibrated switches with standard wetted parts and enclosures will be supplied. Con nuous efforts for product development may necessitate changes in these details without no ce

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